Teeeitoey



(No Model.)

11. W. COON.

COMBINED WAGON JACK AND TIRE TIGHTENER. No. 303,811. Patented Aug; 19,1884,.

WITNESSES: I INVENTOR: V Az BY Mi Q11 ATTORNEYS.

MELZAR \V. GOON, OF W'ALLA \VALLA, XVASHINGTON TERRITORY.

COMBINED WAGON-JACK AND TIRE==TIGHTENEFL SPECIFICATION forming part ofLetters Patent No. 303,811, dated August 19, 1884.

Application filed April 23, 1884.

To all whom it; may concern Be it known that I, MELZAR \V. COON, ofW'alla Walla, in the county of .Valla Walla and Territory oflvashington,have invented a new and Improved Combined \Vagon-Jack andTire-Tightener, of which the following is a full, clear, and exactdescription.

The object of my invention is to provide a simple and powerful jack forlifting and for expanding the wheel in the tire to render the tire tightwithout the necessity of resetting it.

My improvement consists in a chain-lever mounted between two standards,and conneeted by a chain with a sliding block placed between thestandards, and provided with a pawl capable of en gagi n g ratchet-teethformed on the back 01' the standards.

It also consists in a folding foot for the standards, which admits ofapplying the foot end of the jack to the hub of a wheel between thespokes; also, in its combination, with the jack, of blocks adapted tofit in the angle between the spokes and fellies.

tel'erence is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure l is a side elevation of my improved wagonjack, partly insection. Fi 2 is a horizontal section taken on line a; a: in Fig. 1.Figs. 3 and 4 show the application of the jack to tire-tightening.

Two standards, A, are secured at right angles to a footbar, B, andprovided with ratchet -teeth a on their rear edges. The front edges ofthe standards A are rabbeted on their adjacent sides, and provided witha facing, I), of band-iron, which forms a groove for guiding the slidingblock C. The block 0 fits between the standards A, and is provided withan iron plate, c, which slides in the grooves behind the band-ironstrips 6, and with a pin, (Z, which slides along the outer surface ofthe band-iron strips 1:. A pawl, D, is pivoted on the pin (2 in amortise in the sliding block G, and extends between the standards A tothe rear side, where it is provided with a transverse pin, 6, whichengages the ratchet-teeth a on the side standards.

(No model.)

Between the upper ends of the standards A is fulorumed a chain-lever, E,having a cylindrical end, f, and provided with a hook, g, for engagingthe links of its lifting-chain it. The lower end of the lifting-chain I1is secured in the sliding block 0 by the bolt The foot-bar B is providedwith a baseboard, F, formed of two parts, j 7., the part j beingfastened to the footbar, the part I; be ing hinged to the part 7' andcapable of folding back upon it, as shown in dotted lines in Fig. 1.

In the ordinary working of the jack the depression of the chain-lever Eraises the sliding block 0, which is held by the pawl D, and if it isdesired to raise the block farther than one depression of the lever Ewill raise it, the said lever is raised, and a new hitch is ta ken inthe chain it and the lever is again do pressed. \Vhen the jack isapplied to the tire, tightening trapezoidal blocks Z, adapted to theangles between the spokes and the folly, are applied to the foot-bar Band sliding block 0, as shown in Fig. 3, and these blocks are furnishedwith a leather cover to prevent injury to the spokes or felly. By operating the jack the ends of the folly may separate so as to make itentirely fill the tire when the space between the ends may be filled tohold the fell y in its expanded position.

Another method of expanding a wheel is shown in Fig. l. In this case,the part I: of its base-board F being folded back upon the partj, thefoot-bar B is inserted between the spokes at the hub, and the slidingblock 0 is brought to bear on the inner surface of the folly. The spacethus made between the shoulder of the spoke and the felly is filled withsome suitable material capable of retaining the felly in its expandedposition. \Vhen used for expanding a wheel, as shown in Fig. 4:, in casethe spoke is loose in the hub, a clasp-bolt, m, may be used to preventthe spoke from drawing out of the hub.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. In a wagon-jack, the combination, with thestandards A,- provided with ratchet-teeth a, of the sliding block 0,pawl I), lever E, and 3. The combination, with the slidingblook chain h,as described. w G and tooth-a1 B, of trapezoidal block Z, as

2. In a, wagon-jack, the combination, with specified. r

the standards A and foot-ban B, of a, base= MELZAR W. GOON.

beard, F, made in two parts, hinged together, \Vitnesses:

one of the said parts being secured to the base- G. W'. IRELAND,

bar, as specified r J. A. TAYLOR.

